Tread attachment for wheels



May a, 1924. v 1,492,876 I H. J. BARTENBACH ET AL TREAD ATTACHMENT FORWHEELS Filed Dec. 27] 1922 3 Sheets-Sheet l WI Tm J n'oen-iov Hen/y J.jar i612 baa/o May 6, 19249 1,492,876

H. J. BARTENBACH ET AL TREAD ATTACHMENT FOR WHEELS Fiied Dec. 27. 1922 sSheets-Sheet 2 rwen 4501,

Henry Jfiaz-lenbac/v.

May 6 1924;

H. J.-BARTENBACl-j ET AL TREAD ATTACHMENT FOR WHEELS Filed Dec. 27, 19223 Sheets-Sheet 5 in ig.3;

Patented May 6, 1924.

U-NE'E'ED STATES WY J. BABTENBACH AND HUGO GBOTZKY, F GRAND ISLAND,NEBRASKA.

TBEAD ATTACHMENT E03" WHEE'B.

Application filed December 27, 1922. Serial No. 608,281.

Zoallwkomitma; concern:

Be it known that we, HENRY J. BARTEN- neon and HUGO GRou'zKY, citizensof the United States, residing at Grand Island,

in the county of Hall and State of Nebraska, have invented certain newand useful Impvrplvements in Tread Attachments for eels, of which thefollowing is a specification.

This invention relates to means for preventing skidding of wheelsequipped with neumatic or other smooth tread tires. The

invention has for its object the provision of means which may be readilyapplied to or removed from a tire and which, when applied, willeffectually prevent skiddin of the wheel in soft or slippery ground. heinvention is illustrated in the accompanying drawings and consists incertain novel features which will be particularly pointed out in theclaims following a detailed description.

In the drawings- Figure 1 is a side elevation of a portion of a wheelhaving one embodiment of our invention applied thereto;

Fig. 2 is a similar view showing another ada tation of the invention,

1?. 3 is a detail perspective view of one trea section or shoe;

Fi e is a transverse section of a tire and whee rim. having theinvention applied thereto;

Fig. 5 is a detail perspective view of a holding member emplo ed in theform of the invention shown in ig. 2;

Fig. 6 is'a detail perspective view, partly broken away, showin a treadplate difi'erin somewhat from t e tread plate shown Fi 7 is a sideelevation of a portion of a dis having our invention applied thereto;

Fig. 8 is an enlarged cross section on the line 8--8 of Fig. 7;

Fig. 9 is a view, similar to Fig. 7, showing1 another embodiment of theinvention, an

Fig. 10 is an enlarged cross section on the line 10-10 of Fig. 9.

In the drawings, the reference numeral 1 indicates a ortion of a hub, 2indicates spokes, 3 indlcates a felly, and 4 indicates a pneumatic tire,all of which parts may be of any well-known or preferred construction.

In carrying out the invention, we employ I a shoe or tread plate 5 whichis of arcuate form both transversely and longitudinally so as to conformto the curvature of the tread surface of the tire.- In the form of theinvention illustrated more particularly in Fig. 3, this tread plate orshoe is equipped with teeth or spurs 6 struck up from itsground-engaging surface and extending over its entire area in spacedrelation and adapted to enga e the surface of the road over which thewieel is traveling and thereby obtain a goodefl'ective tractionengagement between the wheel and the road. These teeth'or spurs 6 rojectonly slightly beyond the surface of-t e shoe so-that theyareparticularly adapted for use upon paved roads which may be coveredwith sleet and will prevent skiddin of the wheel without injuring theroa way. For use upon soft muddy or sandy roads, we employ the shoe ortread plate 7, shown more particularly in Fig. 6. This tread plate is ofthe same general form as the tread plate 5 but, instead of having thespurs or teeth 6, is equipped or formed centrally with a transverse rib8 which may be conveniently produced by striking up the material of theshoe in substantially U form, as shown in Fi 6. This rib will, ofcourse, enter the mud y or sandy surface to a sufiicient extent tofurnish the wheel with an efiective purchase and at the same time itwill Prevent undue twisting movementof the wheel.

In both forms, it will be noted, the shoe is provided at its side edgeswith grooves or rolled lips or books 9 which constitute hinge members toengage in slots or notches 10 formed in the inner edges of side platesor wings 11, the materia of said plates or wings at the inner side edgesthereof being rolled, as shown at 12,'to form beads or eyes which extendacross the open sides of the notches and are engaged with the hooks 9 soas to be retained therein. The side plates or wings may thus be readily'disposed at the proper angle to fit against the sides of the tires andthese members are provided centrally with the transverse ribs 13 whichwill aid in preventing skidding in ver soft ground and at the same timefurnis attaching members to which the end links 14 of chains 15 may beattached. The chains 15 extend to the sides of the felly 3 and, in theform of the. invention shown more particularly in Fi 1 and 4, areengaged by latches 16 and 17 carried by the meetin opposite sides of afelly-engaging base or clamping plate 18. As shown most clearly in Fi 4,the plate 18 is substantially U- shape in cross section so as to conformto the telly 3 and upon its outer face is provided with a pad or cushion19 whereby marring of the felly is prevented. This pad or cushion,furthermore, by its frictional engagement with the felly will tend toprevent slipping of the base or clamping plate and owing to its yieldingqualities will permit the chains 15 to be drawn taut so as to hold thetread members firmly against the tire. The form.of the inventionemploying the base clamping plate 18 may conveniently be used in citiesor upon paved roads where skidding will be eiiectually prevented if theshoes are provided at intervals, as shown in Fig. l, and it will benoted that the plate passes between the s okes of the wheel which willprevent the p ate slipping circumferentially of the wheel even if itshould not be clamped as tightly as possible.

It is desirable at times to provide the entire circumferential area ofthe tire with the traction ail'orded by the tread plates or shoes and insuch event, we employ the form of the invention shown in Fig. 2. In thisform of the invention, the tread plates are employed in such number asto cover the entire circumference of the tire and lie close togetherthereon. The base or clamping plate 18 with the pad or cushion 19thereon is employed at intervals and in the intervening spaces thechains 15 are secured to tabs 20 projecting from hleeves 21. As shown inFig. 2, the tread members are arranged so as to extend entirely aroundthe circumference of. the wheel and they are flexibly connected byhaving a transverse hook 22 at one end of each shoe or tread plateengaged in a transverse slot 23 at the end of an adjacent tread plate orshoe. he tubes or sleeves 21 will be disposed at the opposite sides ofthe wheel and will form a circularseries concentric with the wheel.Through these sleeves or tubes, we insert a coiled s ring 24 of suchlength as to as through t e entire series of sleeves or tu es and haveits ends joined, as shown at 25. The spring will, of course, be putunder tension when it is inserted through these sleeve members and byits tension will draw them toward the hub of the wheel so that the shoesor tread plates will be held in close engagement with the tire.

In Figs. 7 and 8, we show the invention applied to a disk wheel 30having a demountable rim 31. The disk is provided on its inner side withan enlargement or lug 32 through which is inserted a bolt 33, the

head of the bolt holding a plate 34 against the side of the lug orenlargement. The

plate 34 is rovided with a hook 35 which projects r ally inward beyondthe lug menace and has its bill presented toward the disk. The end ofthe bolt passes through a block or plate 36 and aunt 37 is turned homeagainst said block to clamp the same against the outer side of the diskand the rim. The block 36 is equipped with a hook 38 having its billpresented toward the disk. The tread plate 39 may be of the form shownin Fig. 3 or the form shown in Fig. 6 and is provided with side wings tocorresponding to the wings 11, being fitted over the tire in the mannerdescribed in connection with Figs. 1 and 2. A chain or other flexibleconnection 41 is attached to one side wing 40 and engaged over the hook35, whilea similar flexible connection 42 is secured to the other wing40 and has one link engaged in a lever latch 43, corresponding to thelatch 16, so that, when the latch is closed, both connections will bedrawn taut and the tread shoe held firmly to the tire.

In Figs. 9 and 10, we show the same tread plate 39 applied to anotherform of disk wheel. The disk is provided with an opening 44 therethroughand the chain or other connection 41 is lengthened so that its free endmay be passed through said opening and en ged with the latch 43 which iscarrie b the connection 42. When the latch is c osed, both chains willbe drawn taut, and the tread plate will be secured in place.

In all described forms of the invention, the fastening means may be veryreadily released so that the tread plates and the parts connectedtherewith may be removed mm the wheel while, durin the time the treadplates are in use upon t he wheel, they will be efi'ectually held in theposition in which they are set. The device is very sim le in theconstruction and arran ement of its parts and may be easily app ied to awhee of any size.

Having thus described the invention, what is claimed as new is:

, 1. An anti-skidding attachment for wheels comprising a tread plate,ground-engaging means upon the tread plate, wings hingedly connectedwith the side edges of the tread plate, medial transverse IlbS struckfrom the outer sides of the wings and adapted to engage the ground, andmeans attached to said ribs at the free edges of the wings for securingthe tread plate and the wings upon a tire.

2. An antiskidding attachment for wheels comprising a tread plateadapted to bear against the tread surface, of a tire, wings hinged tothe tread plate and adapted to bear against the sides of a tire,flexible connecting devices attached to said wings,

a U-shaped clamping plate adapted to ex-.

said plate bearing uponthe felly, and means on the sides of the clampingplate to engage the said flexible connecting devices. 3. Ananti-skidding attachment for wheels comprising ,a series of tread platesextending circumferentially over a tire, flexible connections betweenadjacent tread plates,.wings hingedl attached to the sides of theseveral trea plates, flexible con- 10 necting devices extending fromsaid wings

